STM CircleOS forum / Dead Primer2

cwystm · 2010-01-09 10:21:14

Hello. I just purchased two Primer2 from mouser.com last weekend for my project. One was OK and I played it for a few times.

Another one is a standby unit, and I prepared to test it today. When I took it out from its box, there was nothing special on the LCD and the plastic case. However, it had a loosen IC chip (U3, Audio DAC) from motherboard, So I do not dare to power it on.

May be it is my fault. But please guide me for a replacement or a "return to factory" repair. I am in Hong Kong, may it be possible to return the unit to mouser (Hong Kong) office instead.

Many thanks in advance.

Stanley.

cwystm · 2010-01-10 15:33:36

Here are 2 photos on the loosen chip, it is a BGA chip!! It should not be loosen easily!

best regards,
Stanley.

cwystm · 2010-01-10 15:48:10

The motherboard and the MCU may still working.
Because, Circle_Mgr.exe can list the programs in flash, and Cortex_pgm.exe can dump the hex file.

The output is as below.

C:\Program Files\Raisonance\Ride\lib\ARM\CircleOS>Circle_Mgr.exe L
Circle_Mgr: software for managing CircleOS applications.
Copyright Raisonance 2007-2009.

Connecting to RLink... OK
Connecting to target... OK
Silicon Revision Id: 0x10016414.
Option bytes: RDP=0xA5, USER=0xFF, WRP=0xFFFFFFFF
OK
Reading FAT table...
App00: Name=Breakout, Addr=0x08006000, Size=8KB
App01: Name=Maze , Addr=0x08008000, Size=8KB
App02: Name=COMMTEST, Addr=0x0800A000, Size=22KB
App03: Name=EchoIrDA, Addr=0x0800F800, Size=5KB
... OK

Larger free block= 312KB
Closing com with RLink... OK

Hoping the above information helps. Any ideas?

Best regards,
Stanley.

lpdunwell · 2010-01-10 21:27:58

top picture link doesn't work. well this looks bad. what's the version number on the pcb?

cwystm · 2010-01-11 03:27:20

The pcb version is Primer 2 V1.1 , does it matter ?
Anybody here has knowledge on the SMT for BGA chips ?
What can I do, or just wait for a reply from supplier?

Besides, don't know why the top picture link doesn't work. I shall upload it again tonight.

Stanley

lpdunwell · 2010-01-11 10:18:25

well even if you had the resources to solder bga chips (Vapour Phase Soldering machine or whatever) I wouldn't recommend trying to fix it (I'm not sure about the display being temperature resistant for that) and because there's solder on the pads already I doubt it would work. So basically I see two options: either you return it and ask for a replacement (if it was delivered in this state), or if you don't need the codec, just use the primer 2 without it.

btw: the capacitor next to it looks burnt. that's unusual

cwystm · 2010-01-11 17:11:28

Thanks Lpdunwell.
The top picture upload again.

lpdunwell · 2010-01-11 18:48:13

cool the table looks just like mine XD.

I'm sorry, probably can't help u more...

yrt · 2010-01-12 07:45:47

Hi,

For you problem, the best way is to exchange your Primer.
We will contact you by email.

Yves

# 1 2010-01-09 10:21:14 Dead Primer2 - U3 Audio DAC loosen from motherboard

Dead Primer2 - U3 Audio DAC loosen from motherboard

# 2 2010-01-10 15:33:36 Dead Primer2 - U3 Audio DAC loosen from motherboard

Re: Dead Primer2 - U3 Audio DAC loosen from motherboard

# 3 2010-01-10 15:48:10 Dead Primer2 - U3 Audio DAC loosen from motherboard

Re: Dead Primer2 - U3 Audio DAC loosen from motherboard

# 4 2010-01-10 21:27:58 Dead Primer2 - U3 Audio DAC loosen from motherboard

Re: Dead Primer2 - U3 Audio DAC loosen from motherboard

# 5 2010-01-11 03:27:20 Dead Primer2 - U3 Audio DAC loosen from motherboard

Re: Dead Primer2 - U3 Audio DAC loosen from motherboard

# 6 2010-01-11 10:18:25 Dead Primer2 - U3 Audio DAC loosen from motherboard

Re: Dead Primer2 - U3 Audio DAC loosen from motherboard

# 7 2010-01-11 17:11:28 Dead Primer2 - U3 Audio DAC loosen from motherboard

Re: Dead Primer2 - U3 Audio DAC loosen from motherboard

# 8 2010-01-11 18:48:13 Dead Primer2 - U3 Audio DAC loosen from motherboard

Re: Dead Primer2 - U3 Audio DAC loosen from motherboard

# 9 2010-01-12 07:45:47 Dead Primer2 - U3 Audio DAC loosen from motherboard

Re: Dead Primer2 - U3 Audio DAC loosen from motherboard

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